Backport #38321 by @bircni
The `/user/starred` and `/user/subscriptions` endpoints returned private
repositories a user had starred/watched even after their access to those
repositories was revoked, still exposing the repository name,
description and visibility (including later metadata changes).
Private repositories in the starred/watched queries are now gated on the
actor's current access via `AccessibleRepositoryCondition`, so users who
no longer have access no longer receive the metadata. Public
repositories and public-only tokens are unaffected.
Co-authored-by: bircni <bircni@icloud.com>
500a09e044